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Discussion and Debate
Discussion and Debate
Physical & Life Sciences
Creation & Evolution
Can anyone explain how the moth got it's owl eyes?
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<blockquote data-quote="Ophiolite" data-source="post: 77651062" data-attributes="member: 234799"><p>It is interesting to read the full abstract of the paper (The directed mutation controversy and neo-Darwinism ) from which [USER=455219]@Thurston-howell-III[/USER] quoted the opening sentence. Here it is:</p><p></p><p><em>According to neo-Darwinian theory, random mutation produces genetic differences among organisms whereas natural selection tends to increase the frequency of advantageous alleles. However, several recent papers claim that certain mutations in bacteria and yeast occur at much higher rates specifically <strong>when the mutant phenotypes are advantageous.</strong> Various molecular models have been proposed that might explain these directed mutations, but the models have not been confirmed. Critics contend that studies purporting to demonstrate directed mutation lack certain controls and fail to account adequately for population dynamics. Further experiments that address these criticisms do not support the existence of directed mutations.</em></p><p>Lenski, R.E. & Mittler, J.E. Science Vol.259 1993</p><p></p><p>There, highlighted by me, in the second sentence is a clear statement acknowledging that some mutations can be advantageous. Thank you Thurston-Howell-III for locating a peer reviewed journal article that destroys your belief in a single clause. </p><p></p><p>Note: BCP, it is not only rude, as you say, to fail to provide a source for a quotation, it is also against forum rules and constitues an act of plagiarism, potentially open to legal action, but I think the discourtesy is the more troubling.</p></blockquote><p></p>
[QUOTE="Ophiolite, post: 77651062, member: 234799"] It is interesting to read the full abstract of the paper (The directed mutation controversy and neo-Darwinism ) from which [USER=455219]@Thurston-howell-III[/USER] quoted the opening sentence. Here it is: [I]According to neo-Darwinian theory, random mutation produces genetic differences among organisms whereas natural selection tends to increase the frequency of advantageous alleles. However, several recent papers claim that certain mutations in bacteria and yeast occur at much higher rates specifically [B]when the mutant phenotypes are advantageous.[/B] Various molecular models have been proposed that might explain these directed mutations, but the models have not been confirmed. Critics contend that studies purporting to demonstrate directed mutation lack certain controls and fail to account adequately for population dynamics. Further experiments that address these criticisms do not support the existence of directed mutations.[/I] Lenski, R.E. & Mittler, J.E. Science Vol.259 1993 There, highlighted by me, in the second sentence is a clear statement acknowledging that some mutations can be advantageous. Thank you Thurston-Howell-III for locating a peer reviewed journal article that destroys your belief in a single clause. Note: BCP, it is not only rude, as you say, to fail to provide a source for a quotation, it is also against forum rules and constitues an act of plagiarism, potentially open to legal action, but I think the discourtesy is the more troubling. [/QUOTE]
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Can anyone explain how the moth got it's owl eyes?
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